Appendix a Troubleshooting, Problem Solving

Appendix A

Troubleshooting

n the event you encounter a problem using your Telenetics modem, Irefer to the troubleshooting information in this appendix. To

troubleshoot the power supply and backplane on the Universal Data Shelf, refer to the Telenetics RM16M Installation and Operation Manual for the Universal Data Shelf version you have.

IMPORTANT

If you encounter a problem with your modem, be sure the modem switches are set to the appropriate positions. If a switch is halfway between an on and off setting, the modem will not operate properly.

Problem Solving

Table A-1 offers troubleshooting solutions for modem problems.

Table A-1. Troubleshooting Suggestions

If…	Perform These Procedures…

Modem does not respond and	Check the Universal Data Shelf’s
all LEDs are off.	power supply module(s).

Modem does not receive data,	The receive line pair may be
and the DCD and RxD LEDs	disconnected from the modem. Make
are off.	sure the transmission line connection
	to the rear panel of the Universal Data
	Shelf is accurate and secure.
	The receive signal level may be below
	the CD threshold. Set SW1-5 ON to
	see whether configuring the modem
	for a −43 dBm threshold resolves the
	problem.

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